static flux_msg_t *op_recv (void *impl, int flags)
{
ctx_t *c = impl;
assert (c->magic == CTX_MAGIC);
if (set_nonblock (c, (flags & FLUX_O_NONBLOCK)) < 0)
return NULL;
return flux_msg_recvfd (c->fd, &c->inbuf);
}
static void client_read_cb (flux_t h, flux_fd_watcher_t *w, int fd,
int revents, void *arg)
{
client_t *c = arg;
flux_msg_t *msg = NULL;
int type;
if (revents & FLUX_POLLERR)
goto disconnect;
if (!(revents & FLUX_POLLIN))
return;
/* EPROTO, ECONNRESET are normal disconnect errors
* EWOULDBLOCK, EAGAIN stores state in c->inbuf for continuation
*/
//flux_log (h, LOG_DEBUG, "recv: client ready");
if (!(msg = flux_msg_recvfd (c->fd, &c->inbuf))) {
if (errno == EWOULDBLOCK || errno == EAGAIN) {
//flux_log (h, LOG_DEBUG, "recv: client not ready");
return;
}
if (errno != ECONNRESET && errno != EPROTO)
flux_log (h, LOG_ERR, "flux_msg_recvfd: %s", strerror (errno));
goto disconnect;
}
if (flux_msg_get_type (msg, &type) < 0) {
flux_log (h, LOG_ERR, "flux_msg_get_type: %s", strerror (errno));
goto disconnect;
}
switch (type) {
const char *name;
subscription_t *sub;
case FLUX_MSGTYPE_REQUEST:
if (match_substr (msg, "api.event.subscribe.", &name)) {
sub = subscription_create (h, FLUX_MSGTYPE_EVENT, name);
if (zlist_append (c->subscriptions, sub) < 0)
oom ();
} else if (match_substr (msg, "api.event.unsubscribe.", &name)) {
if ((sub = subscription_lookup (c, FLUX_MSGTYPE_EVENT, name)))
zlist_remove (c->subscriptions, sub);
} else {
/* insert disconnect notifier before forwarding request */
if (c->disconnect_notify && disconnect_update (c, msg) < 0) {
flux_log (h, LOG_ERR, "disconnect_update: %s",
strerror (errno));
goto disconnect;
}
if (flux_msg_push_route (msg, zuuid_str (c->uuid)) < 0)
oom (); /* FIXME */
if (flux_send (h, msg, 0) < 0)
err ("%s: flux_send", __FUNCTION__);
}
break;
case FLUX_MSGTYPE_EVENT:
if (flux_send (h, msg, 0) < 0)
err ("%s: flux_send", __FUNCTION__);
break;
default:
flux_log (h, LOG_ERR, "drop unexpected %s",
flux_msg_typestr (type));
break;
}
flux_msg_destroy (msg);
return;
disconnect:
flux_msg_destroy (msg);
zlist_remove (c->ctx->clients, c);
client_destroy (c);
}
